1、Strong shielding, fast heat dissipation, anti-interference, high fidelity, improved sound purity, and can solve the impact sound of fast shutdown. 2、Convenient to plug in the line, equipped with a 15cm dedicated line, easy to access can be placed directly in the center console, without wiring everywhere, avoiding the chaotic wiring that may cause current and sound interference. 3、Delay switch line output, reduce the rush out to the power amplifier or subwoofer and eliminate the noise generated by the current interference of the power amplifier speaker when the host is turned on. 4、The audio transformer converts the high-level audio signal of 0-15V output by the host into a low-level audio signal of 0-5V without loss. 5、Processed with high-quality materials of aluminium lloy, wear-resistant, high-temperature resistant, and have a long service life. Item Type: Speaker High to Low Level Converter Material: Aluminium Alloy Voltage:12 (V) Maximum Power: 50 (W) Coverter Size: Approx. 77x52mm/3x2in Connecting Wire Length: Approx. 15cm/5.9in How To Use: 1. Connect the power cord of the product to the converter and the wiring harness to the car's influence host, and the other end of the car audio cable to connect to the car audio amplifier. 2. The product packaging comes with complete wiring instructions and product usage methods. 1 x Converter 1 x Connecting Wire 1 x Manual